Hose-coupling



2 Sheets Sheet 1. A. G. KINYON. HOSE COUPLING.

(No Model.)

No. 580,871. Patented Apr. 20, 1897.

74%Z7wC Q se6. I Imv Zvrm d y 1 7 (No Mode 1.) 2 Sheets-Sheet 2.

- A. G. KINYON.

HOSE COUPLING. No. 580,871. Patented Apr. 20, 1897.

I2 g; /z VII/Z7 i 1': L 37 mfQ a mw 2223 Nrrnn STATES PATENT ()FFICE.

ALONZO G. KINYON, OF ELGIN, ILLII TOIS, ASSIGNOR TO JAMES M. BARR, OF

' ST. PAUL, 'MINNESOTA.

HOSE-COUPLING.

SPECIFICATION forming part of Letters Patent No. 580,871, dated April20, 1897.

Application filed September 15, 1894. Serial No. 523,131. (No model.)

To all whom it may concern.-

Be it known that I, ALONZO G. KINYON, a citizen of the United States,residing atElgin, in the county of Kane and State of Illinois, haveinvented a new and useful Hose-Coupling, of which the following is aspecification.

This invention relates to hose-couplings, and particularly to couplingsfor hose employed in brake mechanism for railwaytrains.

The present invention is an improvement upon the construction set forthin my application, Serial No. 504,818, filed March 23, 1894C.

The object of the present invention is to provide a coupling of simpleand improved construction, easily operated, durable, and exceedinglyeffective in operation.

With these objects in view the invention consists, substantially, in theconstruction, combination, location, and relative arrangement of parts,all as will be more fully hereinafter set forth, as shown in theaccompanying drawings, and finally pointed out in the appended claims.

Reference is had to the accompanying drawings, and to the various viewsand referencesigns appearing thereon, and wherein- Figure 1 is a planview showing two halfblocks coupled up and embodying my invention.

' .ing the posit-ion of the parts at the beginning of the couplingoperation. Fig. 3 is a view in central longitudinal section taken on theline 00 m, Fig. 1. Fig. 4 is a view in side elevation of theconstruction shown in Fig. 1. Figs. 5, 6, and 7 are detail views in planand. side elevation, respectively, of the cam-plate.

The same reference-sign is used throughout the several views todesignate the same part.

Referencesigns A and 13 indicate halfblocks of a hose-coupling. Eachhalf-block is provided with the usual grooved flange 10 11 and engaginglip or projection 12 13 for maintaining two half-blocks in engagementwhen a coupling has been effected. The halfblocks are provided withvalves 14 15, normally adapted to be received in valve-seats 16 17 andtobe seated by the pressure contained in the train-pipe connected tosaid halfblocks. Valves 1 1 15 are arranged longitudinally withreference to the length of the halfblocks, and the heads-18 19 thereof,secured or Fig. 2 is a plan view of the same, show-- attached thereto inany suitable way, is arranged to project into the recess formed byflanges 1O 11 and the main body of the halfblock. A gasket 20 21, ofsuitable packing material, is mounted uponthe stem of valve 14 15adjacent to the point of junction of the stem and head 18 19, andisadapted to be received in a suitable seat formed in the body of thehalf-block in order to make an effective tight joint.

In the construction set forth in my prior application the valve 14 15 isarranged to be 'unseated by the engagement with the head thereof of theengaging lip or projection on the adjacent half-block. I have foundthatthe resistance to any movement of the valve in a direction to unseat it,due to the pressure in the pipe, is so great as to have a tend- 7o encyto force the half-blocks away from each other without efiecting acoupling when the valve-head was engaged directly by the engaging lip ofthe adjacent half-block. I will now describe the present construction,where- 7 5 in this tendency is entirely corrected and removed. I providea cam-plate 22 23,slotted as at 24:, and having pins 25 at each endthereof, and arrange the same adjacent to the head of valve 14 15, withthe curved back 26 thereof presented toward and adapted to engage saidvalve-head, as indicated more clearly in dotted lines in Fig. 1, thevalve-head being shown of wedge shape. A pin 27, rigidly mounted in thehalf-block, is adapted to pass through the 8 5 slot 24 in the cam-platein order to form a guide therefor. In the form shown guide-pin '27 isarranged slightly beyond the path of adjacent half-block when twohalf-blocks are 5 brought into position to be coupled up, as shown moreclearly in Fig. 2. Then the half-blocks are then turned upon each otherto effect an engagement or coupling-that is,

when the half-blocks are turned from the po- 10o sition shown in Fig. 2to that shown in Fig. 1the side or edge of the engaging lip orprojection 12 13 engages pin 25 on the one end of cam-block 22 23 andforces the same around The cam-plate o endwise, its movement beingguided by slot 24 and pin 27. This movement causes the back surface 26thereof to engage the front face of the head of valve 14 15, and henceeffects an unseating of the valve without the direct engagement with thevalve-head of the engaging lip or projection 12 13, while at the sametime the tendency of the engagement between the side or edge of theengaging lip and the pin is to pull or maintain the two half-blockstogether and into engagement with each other. This tendency is due tothe fact that the side or edge of the engaging lip which engages pin 25is inclined upwardly from the outer or peripheral edge or end of thesaid lip, and hence the resistance of the pin 25 is exerted in adirection to force the two half-blocks endwise toward each other. Thegreater the resistance to the unseating of valve 14: 15 the greater thistendency. Suitable stops 28 may be provided, against which plates orblocks 22 23 may abut in order to limit the movement thereof withoutdepending upon the engagement of pin 27 with the end of its slot 24. Inorder to relieve the usual packingaskets 29 of undue wear durin the coulin b b b and uncoupling operations, I provide camblock 22 23 with aflange at one end thereof, the outer edge of which is struckupon acircle having a different center from that of the circular face of thehalf-block. Flange 30 is so arranged that when two half-blocks arebrought together in order to effect a couplingthat is, when the partsare brought into position shown in Fig. 2the flange 30 is interposedbetween the meeting faces of the half-blocks. The effect of this is thatthe faces of the half-blocks and hence the gaskets or packing-rings 39do not come in close contact with each other d uring the turning of thehalf-blocks to effect a coupling, as into the position shown in Fig. 1,while at the same time the endwise movement imparted to camblock 22 23by the engagement with the pin 25 thereon of the side or edge ofengaging lip or projection causes the flange 30 to be retracted frombetween the meeting faces of the half-blocks. This construction andarrangement also insure an effective engagement of the engaging lip withthe grooved flange on the adjacent half-block. In order to relieve thevalve-stem of undue friction during its endwise movements and thusreducing the wear thereon, I provide a guide-pin 31, (see Figs. 1 and2,) against which the side of the head on the valve-stem is adapted tobear and which not only forms a guide therefor, but it also takes up thepressure and resistance which would otherwise be imparted to thevalve-stem.

I will now describe the construction whereby the packing-rings orgaskets 29 are held in place and which facilitates the easy renewalthereof in case of wear.

In the manufacture of half-blocks it is usual to cast the same in a sandmold. In carrying out my present invention I bury in that part of thesand mold which forms the core a previously-constructed spider,comprising a ring or circularly-flanged base, having converging archedarms or legs 33. When the casting of the half-block is completed and thesand removed, the spider will of course be retained in the hollowchamber of the block, it being understood that the spider is too largeto pass through the opening in the face of the block. At the meetingpoint of the arched arms 33 I drill and screw-thread an aperture andinsert a threaded stud or bolt 32, the end of which is adapted to bearagainst the rear wall of the half-block. Bysuitably manipulating thisstud through the opening in the face of the block the spider can be setdown upon the packing -ring or gasket or released therefrom. Vhen it isdesired to renew the packing-ring, it is only necessary to release thespider, insert a new ring, and again clamp the spider into place. Bythis construction the packing-rings may be renewed with the greatestfacility wherever and whenever desired, the only tool required being anordinary screw-driver, without the necessity of skilled labor or thereturning of the coupling to the shops for repairs, as is the case withthe couplings at present in use.

It will be observed that the pins 25 on each cam-block 22 23 are spacedas far apart as possible in order that the engaging lip 12 13 may passtherebetween in case a coupling should by accident pull apart while inuse. In practice I may, if desired, inclose the camblocks in a suitablyarranged protectinghood.

It will be obvious from the above description that a half-blockconstructed in accordance with my invention is equally effective whenused in connection with a half-block of the ordinary \Vestinghouse typeof construction, wherein the valve is operated by an ordinaryangle-cock.

IVhen two half-blocks constructed in ac cordance with my invention areused in conjunction with each other to effect a coupling,

it will be seen that the outer ends of the camblocks carried by therespective half-blocks abut against each other when the parts arearranged to make a coupling, (see Fig. 2,) and when the half-blocks areturned to effect the coupling the cam-blocks push against each other.This engagement is not depended upon, however, to unseat the valvesthrough the engagement of the cam-surface 26 of the cam-blocks with thevalve-head. This work is accomplished by the engagement of the side oredge of the engaging lip 12 13 with pin or projection 25.

In order to effect an uncoupling, the halfblocks are rotated upon eachother-that is, moved from the position shown in Fig. 1 to that shown inFig. 2. By this movement the outer edge or side of the engaging lips 1213,

respectively, engage the outer pins or projecface thereof fromengagement with the heads 18 19 of the valves, and hence permitting thevalves to be seated by the pressure contained in the pipes.

While I have shown and described in detail a specific constructionembodying the principles of my invention, I desire it to be distinctlyunderstood that I do not confine or limit myself to the exact detailsshown and described, as many variations therefrom would readily suggestthemselves to persons skilled in the art and still fall within thespirit or scope of my invention; but,

Having now described an embodiment of my invention and explained theprinciple and mode of operation thereof, what I claim as new and of myown invention, and desire to cover by Letters Patent of the UnitedStates, is-

1. In a hose-couplin g for railway-brake mechanism a half-block providedwith the usual engaging lip and flange for maintaining two half-blocksin engagement with each other when a coupling has been effected, a valveadapted to hold its seat by the pressure therein, a movable piecearranged to engage said valve to unseat it and adapted to be engaged andmoved by a moving part on an adjacent half-block when a coupling iseffected; as and for the purpose set forth.

2. In a hose-coupling, a half-block provided with the usual engaging lipand projection, a valve arranged longitudinally with respect thereto,and adapted to be held to its seat by the pressure therein, a blockarranged to engage the head of said valve and adapted to be engaged bythe engaging lip on an adjacent half-block when a coupling is effected,whereby said block is moved and said valve is unseated as and for thepurpose set forth.

3. In a hose-coupling a half-block provided with the usual engaging lip,a valve arranged to be seated by the pressure containedtherein, acam-block arranged to engage the head of said valve and having a pin orprojection, adapted to be engaged by the engaging lip 011 an adjacenthalf-block when a couplingis effected,whereby said cam-block is movedand said valve is unseated; as and for the purpose set forth.

4. In ahose-coupling, a halfblock provided with the usual engaging lip,avalve arranged to be seated by the pressure contained therein, aslotted cam-block, the cam-surface of which is arranged to engage thehead of said valve, a guide-pin adapted to be received in said slot,said cam-block adapted to be engaged by the engaging lip on an adjacenthalf-block when a coupling is effected,wherebysaid cam-block is movedupon its guide-pin, and said valve is unseated as and for the purposeset forth.

5. In a hose-coupling, a half-block, a valve arranged thereinlongitudinally with respect thereto, and adapted to be seated by thepressure contained in the train-pipe, a slotted movable cam-blockarranged to engage the head of said valve, and having pins orprojections arranged in the path of movement of the engaging lip on anadjacent half-block when a coupling is effected, a guide-pin adapted tobe received in said slot, and a stop for said cam-block; as and for thepurpose set forth.

6. In a hose-coupling, a half-block, a valve a ranged therein having aheaded stem, a packing-ring mounted upon said stem, a movable cam-blockhaving projections arranged in the path of movement of the engaging lipon an adjacent half-block when a coupling is efiected and adapted toengage the valvehead, and a guide for said head; as and for the purposeset forth.

' 7. In a hose-coupling a half-block, a valve arranged therein adaptedto be seated by the pressure in the train-pipe, a movable camblockcarried bysaid half-block, the cam-surface of which is arranged toengage the head of said valve, and means for moving said camblock when acoupling is effected; as and for the purpose set forth.

8. In a hose-coupling, coupling-blocks, provided with the usualpacking-rings, a flange arranged between the meeting faces of saidblocks when the parts are assembled to effect a coupling, and meanswhereby said plate is disengaged from between said meeting faces duringthe movement of the parts to complete the coupling as and for thepurpose set forth.

9. In a hose-coupling, half-blocks, a block, having a flange arrangedbetween the meeting faces of said half-blocks when the parts areassembled to effect a coupling, said block adapted to be engaged andmoved by the e11- gaging lip on one of said half-blocks during thecoupling operation, whereby said flange is disengaged from between thefaces of the half-blocks as and for the purpose set forth.

10. In a hose-coupling half-blocks, a movable bloek carried by one ofsaid half-blocks having a cam-flange thereon arranged between themeeting faces of said half-blocks when the parts are assembled to effecta coupling, said movable block provided with pins or projectionsarranged in the path of movement of the engaging lip on the adjacenthalf-block when a coupling is eifected,whereby said flanged block ismoved and the camflange thereon is disengaged from between the meetingfaces of said blocks; as and for the purpose set forth.

In witness whereof I have hereunto set my hand, this 12th day ofSeptember, 1894:, in the presence of the subscribing witnesses.

ALONZO G. KINYON.

lVitnesses M. I. CAVANAGI-I, S. E. DARBY.

